从Nodejs获取PDF文件，并在angular物理目录中复制

const request = require('request'); // 或使用 axios
const fs = require('fs');

const url = 'URL_OF_PDF_FILE'; // PDF文件的URL

request.get(url, function(error, response, body) {
  if (!error && response.statusCode === 200) {
    // 将PDF文件内容保存到本地
    fs.writeFileSync('path/to/save/pdf.pdf', body, 'binary');
    console.log('PDF文件已保存到本地');
  }
});

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { catchError } from 'rxjs/operators';

@Injectable()
export class PDFService {
  constructor(private http: HttpClient) {}

  copyPDFToAngularDirectory() {
    const pdfUrl = 'http://localhost/path/to/pdf.pdf'; // Node.js服务器上保存PDF的路径
    const angularDirectory = 'path/to/angular/directory'; // Angular物理目录的路径

    return this.http.get(pdfUrl, { responseType: 'blob' }).pipe(
      catchError((error) => {
        console.log('获取PDF文件失败：', error);
        throw error;
      }),
      switchMap((pdfBlob: Blob) => {
        const formData = new FormData();
        formData.append('file', pdfBlob, 'pdf.pdf');

        // 发送POST请求将PDF文件上传到Angular物理目录
        return this.http.post(angularDirectory, formData, { responseType: 'text' });
      }),
      catchError((error) => {
        console.log('复制PDF文件到Angular目录失败：', error);
        throw error;
      })
    );
  }
}

import { Component } from '@angular/core';
import { PDFService } from './pdf.service';

@Component({
  selector: 'app-root',
  template: `
    <button (click)="copyPDF()">复制PDF文件到Angular目录</button>
  `,
})
export class AppComponent {
  constructor(private pdfService: PDFService) {}

  copyPDF() {
    this.pdfService.copyPDFToAngularDirectory().subscribe(
      () => {
        console.log('PDF文件已成功复制到Angular目录');
      },
      (error) => {
        console.log('复制PDF文件失败：', error);
      }
    );
  }
}